[Doc] ldap, forum, postresql

kralizec/postgresql12/README.md

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+---
+VMID: 121
+---
+
+PostgreSql v15
+
+port 5432
+
+[installation wiki](https://wiki.debian.org/PostgreSql)
+
+## Users
+
+- ejabberd
+- discorse
+- gitea
+- wiki
+- replication
+- xmppsqlkrov (not created)
+- dmzrsflask (not created)
+
+
+## Config for databases
+
+- ejabberddb - `/etc/ejabberd/ejabberd.yml`
+- discorsedb (forum11) `/etc/discorse_docker/containers/web_only.yml` and `-||-/data.yml`
+- giteadb `/etc/gitea/app.ini`
+- wikidb `/root/wiki/config.yml`
+- replication
+
+
+```sh
+pg_dump -d <database> -f <file>
+psql -U <user> -d <dababase> -f <dump.psql>
+
+```
+
+## Config file
+
+`/etc/postresql/15main/postresql.conf`
+changed listening_address from localhost to *
+
+`/etc/postresql/15main/pg_hba.conf`
+host all all all md5
+
+add `/etc/ssl/certs/ssl-cert-snakeoil.pem` to `/etc/ssl/` on every service
+
+
+## SSL
+
+For wiki machine certificate pinging is setup
+In config.yml on wiki machine, the certificate path for new sql server should be added
+
+
+